What are some common strategies for efficiently processing and modifying text content in PHP scripts?

One common strategy for efficiently processing and modifying text content in PHP scripts is to use built-in functions such as `str_replace()` to find and replace specific text within a string. Additionally, regular expressions can be used to perform more complex text manipulations. Another approach is to utilize functions like `substr()` and `strpos()` to extract or manipulate specific portions of a string efficiently.

// Example: Using str_replace() to replace a specific word in a string
$text = "Hello, World!";
$newText = str_replace("World", "PHP", $text);
echo $newText;